Non-invasive measurement of hemoglobin content in blood

Author

Nirupa, J. Lourdes Albina ; Kumar, Varadarajan Jagadeesh

Author_Institution

Dept. of Electr. Eng., India Inst. of Technol. Madras, Chennai, India

fYear

2014

fDate

11-12 June 2014

Firstpage

1

Lastpage

5

Abstract

A non-invasive method of ascertaining the hemoglobin content in blood is presented here. The method proposed here uses a couple of photo-plethysmo-graphic (PPG) signals obtained by illuminating an extremity such as a finger or earlobe with monochromatic light at two different wavelengths. An empirical equation for calculation of hemoglobin content in blood is derived using a model for attenuation of light through skin-bone-tissue-blood in that extremity, well known extinction coefficients of hemoglobin (with and without oxygen) and data collected from a clinical study. The availability of PPGs at two different wavelengths facilitates the computation of, apart from hemoglobin content, heart rate, heart rate variability and oxygen saturation in arterial blood (SpO₂) as well.

Keywords

biochemistry; bioelectric potentials; blood; blood vessels; bone; cardiology; extinction coefficients; light scattering; molecular biophysics; oxygen; photoplethysmography; proteins; skin; O₂; arterial blood; earlobe illumination; empirical equation; extinction coefficients; finger illumination; heart rate variability; monochromatic light; noninvasive hemoglobin content measurement; oxygen saturation; photoplethysmographic signals; skin-bone-tissue-blood light attenuation; Attenuation; Blood; Equations; Fingers; Light emitting diodes; Mathematical model; blood testing; hemoglobin; photoplethysmograph; pulse oximetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Measurements and Applications (MeMeA), 2014 IEEE International Symposium on

Conference_Location

Lisboa

Print_ISBN

978-1-4799-2920-7

Type

conf

DOI

10.1109/MeMeA.2014.6860140

Filename

6860140